src/include/errno.h: Use macros instead of enum
src/include/errno.h: Use macros instead of enum

psp2sdk/cmake,173210/psp2sdk_travis,173210/psp2sdk_travis,psp2sdk/cmake,173210/psp2sdk_travis,psp2sdk/cmake,173210/psp2sdk,173210/psp2sdk,173210/psp2sdk